To get here, skip the balloon and the submarine and take the S-Bahn to Savignyplatz instead. The breakfast menu lists tempting dishes such as “Two Years’ Vacation” and “20,000 Leagues Under the Sea.” Whether you read the paper in the mornings, meet colleagues for lunch, or swing by with friends for dinner, it’s always affordable and worth a trip. The front room has the attractive simplicity of a bistro, while the room in the back is red and lively.